CN213620424U - Aerify equipment of pluging - Google Patents

Abstract

The utility model provides an aerify equipment of pluging, including the fixing device who is used for fixed binary packing, be used for downthehole extrusion device that plugs the stopper and be used for at the general agent of binary packing the positioner who advances line location to fixing device, the inside first driver part that is equipped with of fixing device, under first driver part's effect, fixing device can drive the motion of binary packing. The positioning device is matched with the cutting device to realize automatic filling of the plug, so that the processing efficiency is improved; the inflation plugging device for the binary package can perform plugging operation on plugs of different sizes aiming at the binary packages of different sizes, and the plugs after plugging are not easy to fall off, so that the applicability is strong, and the plugging effect is good.

Description

Aerify equipment of pluging

Technical Field

The utility model belongs to the technical field of functional solvent packaging processing technique and specifically relates to an aerify equipment of pluging.

Background

The binary package is a multiple protection package system consisting of a valve, a discharge port, an aluminum tank or an iron tank, the agent and the propellant are separately packaged in respective containers, the complexity of the formula is reduced, the propellant is not released during use, and the influence on safety and environment is reduced.

In the application number: 201711455011.9, after the binary package is filled with the paste product, the valve is sealed, the propellant is filled, the plug is sealed, and the accelerator is mounted on the valve, so that the pressing of the accelerator can be realized to extrude the product. The filled product is typically a paste, such as a food paste, an anti-bite agent, a silicone adhesive, an STPE hybrid adhesive, a polyurethane sealant, or the like.

After the valve sealing process of the binary package is completed, propellant with accurate metering needs to be filled into a lower cavity of the binary package, then a plug is collided into a bottom hole of the binary package, the compressed gas is sealed in an interference fit mode, and no gas leakage is ensured in the transportation and storage processes.

At present, no similar equipment exists in China, and the processing of the inflatable filling plug can be completed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at foretell problem, provide an aerify equipment of pluging, including the fixing device who is used for fixed binary packing, be used for downthehole extrusion device that plugs the stopper and be used for at the flux of binary packing the positioner who advances line location to fixing device, the inside first drive disk assembly that is equipped with of fixing device, under first drive disk assembly's effect, fixing device can drive the motion of binary packing.

Furthermore, the first driving part drives the fixing device to move, so that the binary package can be switched between a locking state and a non-locking state, and when the binary package is in the locking state, the binary package cannot be taken down from the fixing device; the binary package is removable from the fixture when the binary package is in the unlocked state.

Furthermore, positioner includes fourth drive part and limit baffle, fourth drive part can drive limit baffle motion, and the last second consent that is equipped with of limit baffle, second consent can hold the stopper.

Further, the cutting device comprises a knife rest and a blade, and the blade is fixed on the knife rest.

Further, the fourth driving part is fixed on the third support, the inflatable plugging device further comprises a cutting device, the cutting device comprises a knife rest and a blade, the blade is fixed on the knife rest, the knife rest is connected to the third support, the blade is located on the upper side of the limit baffle, and the fourth driving part can drive the limit baffle to move towards the blade.

Furthermore, the output end of the first driving part is connected with a fixing element, a first plug hole for plugging a plug is arranged in the fixing element, the first plug hole penetrates through the fixing element from top to bottom, a mounting groove for mounting a binary package is arranged in the fixing element, and the first plug hole is communicated with the mounting groove.

Furthermore, the upper opening of the first plug hole is large, and the lower opening of the first plug hole is small.

The extrusion device further comprises a two-stage driving part, the two-stage driving part is divided into a second driving part and a third driving part, the output end of the second driving part is connected with the third driving part, the output end of the third driving part is connected with a firing pin, and the second driving part and the third driving part can plug the plug into the agent through hole through the firing pin.

Further, the output end of the second driving part is connected with a fixer, and the fixer is detachably connected with the firing pin.

Further, the first driving part, the second driving part and the third driving part all adopt air cylinders.

The utility model has the advantages that: the utility model provides an inflation and plugging device for binary package can carry out plugging operation of plugs with different sizes aiming at binary packages with different sizes, and the plugged plugs are not easy to fall off, so that the applicability is strong and the plugging effect is good; in the plugging process, the fixing device can keep the binary package stable, and the binary package is prevented from falling off the equipment; during the plugging process, the first extrusion element can avoid excessive movement of the firing pin, and avoid defects on the binary package caused by excessive operation of equipment due to faults during the processing process: such as where the propellant hole is enlarged or where the plug is caused to be pushed into the propellant storage area; the positioning device is matched with the cutting device to realize automatic filling of the plug, so that the processing efficiency is improved; the equipment has the function of plugging the plug, can also fill the propellant, and has strong practicability.

Drawings

FIG. 1 is a schematic diagram of a binary package;

FIG. 2 is a schematic view of the overall structure of an inflation plugging apparatus;

FIG. 3 is a sectional view showing an internal structure of the fixing member;

FIG. 4 is an enlarged partial view of the area "B" in FIG. 2;

FIG. 5 is a schematic view of the striker of FIG. 3 after it has been extended into the first receptacle;

FIG. 6 is a schematic structural diagram of a cylindrical flux hole;

FIG. 7 is a schematic structural view of the flux holes in petal shape;

FIG. 8 is an inflatable corking apparatus carrying a cutting device;

FIG. 9 is a schematic view of the fixing member in one direction;

FIG. 10 is a schematic view of the fixing element in another orientation;

FIG. 11 is an exploded view of FIG. 9;

FIG. 12 is a schematic view of the connection structure between the first pressing member, the second pressing member and the third fixing member;

fig. 13 is a cross-sectional view of the first compression element.

Detailed Description

Embodiments of the invention will be described in further detail with reference to the drawings, it being understood that the examples are illustrative only and should not be taken as limiting the invention, and that all of the features disclosed in the examples or all of the steps in any method or process disclosed herein can be combined in any way, except for mutually exclusive features and/or steps.

In order to better facilitate understanding of others, the utility model provides an inflatable plugging device, introduce the structure of binary package 40 earlier here, refer to fig. 1, including jar body 41, discharge gate 48 and valve structure 47, valve structure 47 is located the top of jar body 41, be equipped with agent storage area 42 and propellant storage area 43 in jar body 41, when jar body 41 is just put (as the state shown in fig. 1), agent storage area 42 is located propellant storage area 43 upside position, valve structure 47 is used for connecting agent storage area 42 and discharge gate 48, connect through piston 49 between agent storage area 42 and the propellant storage area 43, the bottom of jar body 41 still is provided with logical agent hole 50; the agent introducing hole 50 is embedded with a plug 44, preferably, the plug 44 is a rubber plug. Binary package 40 may also be "application No.: 201711455011.9, the structure of the binary package 40 is not the claimed invention, the present invention mainly claims a device capable of fixing the plug 44 to the inside of the agent hole 50 of the binary package 40, and therefore, the structure of some other binary packages 40 will not be described in detail.

Referring to fig. 2, the utility model relates to an aerify equipment of adding stopper, including fixing device 10, extrusion device 30, fixing device 10 is used for the fixed of binary packing 40, is equipped with first drive unit 12 inside fixing device 10, under the effect of first drive unit 12, can drive the motion of binary packing 40, realizes being in the switching between locking state, the non-locking state of binary packing 40, when binary packing 40 is in the locking state, binary packing 40 can't take off from fixing device 10; the dual component package 40 can be removed from the fixture 10 when the dual component package 40 is in the unlocked position, which is designed to avoid the dual component package 40 from falling out during operation of the apparatus. The pressing device 30 is used to assemble the plug 44 to the binary package 40, and the plugged plug 44 should have an interference fit with the primer hole 50.

Specifically, the fixing device 10 and the extruding device 30 are located on the same straight line, the fixing device 10 includes a first bracket 11 disposed on the frame body 60, a first driving part 12 is fixed on the first bracket 11, an output end of the first driving part 12 is connected to a fixing element 13, the fixing element 13 includes a mounting groove 14, the mounting groove 14 is used for mounting the binary package 40, in this embodiment, the binary package 40 is cylindrical, so the mounting groove 14 is a cylindrical groove, the bottom end of the binary package 40 can be inserted into the mounting groove 14, the bottom of the binary package 40 is recessed toward the propellant storage area 43, the mounting groove 14 is provided with a protrusion matching with the recess at the bottom of the binary package 40, the protrusion is provided with a first sealing ring 15, the first sealing ring 15 can increase the friction force between the installation groove 14 and the binary package 40, and the binary package 40 can be installed on the fixing element 13 by combining the inner wall of the installation groove 14. The fixing device 10 further comprises side brackets 61 located on the frame body 60, the side brackets 61 are at least provided with two side brackets 61 which are distributed vertically, circular grooves 62 matched with the binary packages 40 are formed in the side brackets 61, when the binary packages 40 are abutted to the circular grooves 62 of the side brackets 61, one side (top end) of the agent storage area 42 of the binary packages 40 faces downwards, the bottom end of the binary packages 40 can just enter the installation groove 14, and the frame body 60 is further provided with an abutting block 63. After the binary package 40 is installed in the installation groove 14, the binary package 40 is in an unlocked state, and the binary package 40 can be detached from the installation groove 14; when the first driving part 12 is started, the fixing element 13 drives the binary package 40 to move downwards, the top end of the binary package 40 is in contact with the abutting block 63, the first driving part 12 stops, the binary package 40 is in a locking state at the moment, the binary package 40 cannot move or be taken down, the state is the state when the plug 44 is plugged, and the binary package 40 can be prevented from shaking during plugging. Since the dual package 40 will contact the abutment block 63, in order to avoid the deformation of the dual package 40 during the abutment process caused by the excessively hard abutment block 63, the abutment block 63 is preferably made of a soft material, such as rubber, and in this embodiment, the abutment block 63 is a cylindrical rubber pad.

Preferably, referring to fig. 3, the fixing element 13 is provided with a first receptacle 16, the first receptacle 16 extends vertically, and when the binary package 40 is mounted on the fixing element 13, the first receptacle 16 is opposite to the agent hole 50.

Referring to fig. 2, the pressing device 30 includes a second bracket 17 disposed on the frame body 60, and a second driving member is disposed on the second bracket 17 and connected to a striker through which a plug can be inserted into the through-hole. In the embodiment, in order to improve the efficiency of plugging the plug into the agent through hole, the second bracket 17 is provided with two stages of driving components, the two stages of driving components have stronger extrusion force relative to the one stages of driving components, so that the plugging efficiency can be greatly improved, specifically, the second bracket 17 is provided with the second driving component 18, the output end of the second driving component 18 is connected with the third driving component 19, the output end of the third driving component 19 is connected with the firing pin 21, the plug 44 can be plugged into the agent through hole 50 through the firing pin 21, because the length of the firing pin 21 is longer, if the firing pin 21 is deviated in the process of pushing the plug 44, the firing pin 21 is likely to be broken, in order to avoid the technical problem, in the design, the first bracket 11 is appropriately made larger, the first bracket 11 is provided with a through hole 22, the size of the through hole 22 is the same as the diameter of the firing pin 21, and the firing pin 21 is in transition fit, the striker 21 can slide up and down in the through hole 22, and under the action of the through hole 22, the striker 21 can be ensured to be always kept vertically downward, so that the striker 21 is prevented from being broken due to deviation.

Preferably, referring to fig. 3, the first plug hole 16 has a large upper opening and a small lower opening, the upper opening is approximately equal to the diameter of the plug 44 in the initial state, and the lower opening is approximately equal to the diameter of the agent passing hole 50, when the striker 21 pushes the plug 44, the plug 44 is pressed by the first plug hole 16 and gradually becomes smaller, and when the plug is pressed to be approximately equal to the size of the agent passing hole 50, the plug 44 enters the agent passing hole 50, and the plug 44 is spread by the action of its own elasticity to be in close contact with the agent passing hole 50, thereby sealing the agent passing hole. The approximation referred to herein means that the diameters are the same or that the difference in diameters is within 1 mm.

Preferably, referring to fig. 4, the transition section 23 is arranged at the lower end of the striker 21, the diameter of the transition section 23 is gradually reduced, the lower end of the transition section 23 is further provided with a tip 24, the diameters of the tips 24 are consistent, the transition section 23 of the striker 21 is matched with the first plug hole 16, when the striker 21 moves downwards, the transition section 23 of the striker 21 is in contact with the first plug hole 16, the striker 21 cannot move downwards continuously, the tip 24 of the striker 21 partially enters the propellant hole 50, and the diameter of the tip 24 is smaller than that of the propellant hole 50, so that the entrance of the tip 24 does not cause the propellant hole 50 of the binary package to be enlarged, and in this state, the plug 44 is still in the propellant hole 50, and the plug 44 is prevented from being pushed into the propellant storage area 43 due to excessive movement of the striker 21.

Preferably, referring to fig. 6 and 7, in the prior art, some of the primer holes 50 at the bottom of the binary package 40 are hollow cylindrical, and the design of such hole type results in that the processing of such binary package 40 is cumbersome; there are also binary packages 40 in the prior art, whose bottom opening 50 is punched out, which is easy to process, and whose edges of the opening 50 are flap-shaped and have sharp corners that prevent the plug 44 from being torn out after the plug 44 is inserted into the opening 50, because the plug 44 will catch the plug 44 when it is torn out, which helps to prevent the plug 44 from falling off.

An inflation plugging device, referring to fig. 2, further comprises a positioning device 20, wherein the positioning device 20 is mainly used for positioning the fixing device 10, and the positioning is mainly used for positioning the initial state of the fixing device 10 to enable the fixing device to be located at a specified position. The positioning device 20 includes a third bracket 25, a fourth driving part 26 is disposed on the third bracket 25, an output end of the fourth driving part 26 is connected to a limit baffle 27, and the limit baffle 27 is mainly used for limiting an initial position of the fixing element 13, so as to facilitate control of the first driving part 12. Further, a second plug hole 28 is formed in the limit baffle 27, and the second plug hole 28 is used for placing the plug 44. In general, the positioning device 20 will be used with a cutting device, referring to fig. 8, the cutting device includes a knife holder 31 and a knife blade 32, the knife holder 31 is fixed on the third support 25, the knife blade 32 is located at the upper side of the limit stop 27, a rubber strip (not shown in the figure) is prepared, one end of the rubber strip is inserted into the second plug hole 28, the rubber strip cannot extend out of the second plug hole 28, when the fourth driving component 26 is started, the limit stop 27 drives the rubber strip to move towards the fixing element 13, the rubber strip contacts with the knife blade 32 and is cut into a plug 44, when the fourth driving component 26 drives the limit stop 27 to come above the fixing element 13, and the second plug hole 28 just faces the first plug hole 16, the cut plug 44 falls into the first plug hole 16 under the action of gravity, the fourth driving component 26 starts to drive the limit stop 27 to reset, while the end of the rubber strip is again inserted into the second receptacle 28 and the positioning device 20 returns to the initial position. At this time, the fixing device 10 and the pressing device 30 are activated to perform the process of plugging the plug 44 into the agent passing hole 50.

Preferably, in a real-world production process, the binary packages 40 have a plurality of different sizes, and the bottom ends of the different binary packages 40 are different, that is, the sizes of the applicable installation grooves 14 are different; even different binary packages 40 have different agent apertures 50 and different plugs 44. In order to enhance the adaptability of the device to different binary packages 40, the fixing element 13 is of a detachable and replaceable design. Specifically, referring to fig. 9-12, the fixing element 13 includes a first fixing element 70, a second fixing element 71, and a third fixing element 72, the first fixing element 70 is used for connecting with the first driving component 12 to drive the whole fixing element 13 to move, the first fixing element 70 is connected with the second fixing element 71, the second fixing element 71 is provided with a first installation hole 73 penetrating up and down, a replaceable first extruding element 74 is installed in the first installation hole 73, the first plug hole 16 is provided in the first extruding element 74, the first extruding elements 74 of different models have first plug holes 16 of different sizes, the first extruding element 74 is connected with the second fixing element 71 in an interference fit manner to ensure that the first extruding element 74 after installation is sufficiently firm, the first extruding element is provided with a first annular groove 75, the first annular groove 75 is used for installing a second sealing ring 76, the first extruding element 74 sleeved with the second sealing ring 76 is connected with the second extruding element 77, a second mounting hole 78 penetrating up and down is formed in the second extruding element 77, the second mounting hole 78 is sleeved on the outer side of the first extruding element 74, the second extruding element 77 is fixed to the first extruding element 74 through the friction force between the second mounting hole 78 and the second sealing ring 76, furthermore, in order to enable the connection between the first extruding element 74 and the second extruding element 77 to be relatively firm, two first annular grooves 75 are formed in the first extruding element 74, correspondingly, two second sealing rings 76 are installed, and the maximum friction force between the first extruding element 74 and the second extruding element 77 can be increased. The second pressing element 77 is stepped, the upper portion of the second pressing element 77 is smaller, the lower portion is larger (described in terms of the direction of the device in the upright state, the same applies below), correspondingly, a stepped hole 79 matched with the second pressing element 77 is also formed in the third fixing element 72, the upper portion of the stepped hole 79 is smaller, the lower portion of the stepped hole 79 is larger, the third fixing element 72 can be fixed to the second fixing element 71 through the first pressing element 74 and the second pressing element 77, the mounting groove 14 is formed in the third fixing element 72, the first pressing element 74 and the second pressing element 77 are connected through friction force, the third fixing element 72 can be easily replaced, different third fixing elements 72 are provided with mounting grooves 14 of different sizes, and accordingly, different binary packages 40 can be matched. Further, the second pressing member 77 is provided with an annular groove 80, and the first seal ring 15 is fixed on the annular groove 80.

Preferably, the fixing element 13 is replaceable, and correspondingly, the striker 21 is replaceable, the output end of the third driving part 19 is connected with the fixer 81, the fixer 81 is connected with the striker 21, the fixer 81 can be provided with different types of strikers 21, and the selection of the striker 21 depends on the size of the plug 44.

Preferably, the first driving member 12, the second driving member 18, the third driving member 19, and the fourth driving member 26 all perform linear motions during operation, so that the first driving member 12, the second driving member 18, the third driving member 19, and the fourth driving member 26 may adopt mechanical structures, such as a linear cylinder, a linear motor, a gear rack, a crank block, a screw block, etc., which are commonly used in the mechanical field and capable of performing linear motions. Specifically, in this embodiment, a designer selects different driving components according to different requirements of different positions, the first driving component 12 selects a TN cylinder (a dual-shaft dual-rod cylinder), the second driving component 18 selects an MA-SU cylinder, the third driving component 19 selects an SDAS cylinder (a square cylinder), and the fourth driving component 26 selects a TN cylinder.

Preferably, and with reference to figure 13, the first pressing element 74 is provided with a second annular groove 82, the second annular groove 82 being similar in shape to the first annular groove 75 but functioning completely differently, the second annular groove 82 serving to charge the propellant storage area 43 with propellant. Specifically, a channel 83 is arranged in the first extrusion element 74, the channel 83 is communicated with the second annular groove 82, when the first extrusion element 74 is installed, the first extrusion element 74 is located in the second fixing member 71, the device can also have a propellant filling function, only a propellant filling hole communicated with the second annular groove 82 needs to be formed in the second fixing member 71, before the plug 44 is plugged into the propellant filling hole 50, the propellant is filled into the second annular groove 82 through the propellant filling hole, the propellant reaches the bottom position of the binary package 40 through the channel 83 and enters the propellant storage area 43 through the propellant filling hole 50, and after the propellant is filled, the plug 44 is filled into the propellant filling hole 50 through the fixing device 10 and the extrusion device 30. In the above process, the propellant is filled and the plug 44 is plugged through the first receptacle 16 and the passage 83 independently of each other, and the filling of the filler does not affect the plugging of the plug 44 by the first receptacle 16.

In order to facilitate understanding of other people, the utility model discloses an equipment carries out operating condition's explanation below combining equipment structure: an operator inserts the bottom end of the binary package 40 into the mounting groove 14, the binary package 40 is in an inverted state and is in a non-locking state, the operator inserts one end of one rubber strip into the second plug hole 28, controls the position of the rubber strip and prevents the rubber strip from extending out of the second plug hole 28; starting the fourth driving part 26, the limit baffle 27 drives the rubber strip to move towards the fixing element 13, the rubber strip contacts with the blade 32 and is cut into the plug 44, at this time, the second fixing part 71 is located at the lower side position of the limit baffle 27, the plug 44 can be prevented from falling out of the second plug hole 28, the fourth driving part 26 continues to move until the second plug hole 28 just faces the first plug hole 16, at this time, the plug 44 falls into the first plug hole 16 under the action of gravity, the fourth driving part 26 starts to drive the limit baffle 27 to reset, and simultaneously, one end of the rubber strip is inserted into the second plug hole 28 again, so that the next plug 44 is ready for cutting (if the device does not have the positioning device 20 and the cutting device, the cut plug 44 is directly placed into the first plug hole 16 of the fixing element 13);

(if propellant filling is required, this step is performed by filling propellant into the second annular groove 82 via the propellant filling aperture, the propellant reaching the bottom position of the binary package 40 via the channel 83 and entering the propellant storage area 43 via the propellant passage aperture 50);

the first driving component 12 is started, the fixing element 13 drives the binary package 40 to move downwards, the top end of the binary package 40 is contacted with the abutting block 63, the first driving component 12 stops, the binary package 40 is in a locking state at the moment, the second driving component 18 and the third driving component 19 are started, the firing pin 21 is driven to move downwards, the plug 44 is squeezed by the first plug hole 16 in the process that the firing pin 21 pushes the plug 44, the plug 44 gradually becomes smaller, when the plug is squeezed to be approximate to the size of the pesticide passing hole 50, the plug 44 enters the pesticide passing hole 50, and after the plug 44 enters, the plug 44 is spread under the action of self elasticity to be closely contacted with the pesticide passing hole 50, and the pesticide passing hole is sealed. (the plugging process of the plug 44 is not completed at one time, and the plugging operation is generally completed only by pressing the plug 44 downwards by the striker 21 several times);

when the plug 44 is plugged, the first driving part 12 controls the fixing device 10 to return to the initial position, the second driving part 18 and the third driving part 19 control the squeezing device 30 to return to the initial position, at this time, the dual package 40 is in the unlocked state again, and the operator removes the dual package 40 from the installation groove 14.

The above description is only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through creative work should be covered within the protection scope of the present invention, and therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims (10)

1. The utility model provides an aerify equipment of pluging, its characterized in that, including the fixing device who is used for fixed binary packing, be used for filling up the extrusion device of stopper and be used for right in the agent hole of binary packing the fixing device goes on the positioner who fixes a position, the inside first drive part that is equipped with of fixing device, under first drive part's effect, fixing device can drive the motion of binary packing.

2. The inflation plugging device according to claim 1, wherein the first driving member drives the fixing device to move so as to realize switching between the locking state and the unlocking state of the binary package, and when the binary package is in the locking state, the binary package cannot be taken down from the fixing device; the binary package is removable from the fixture when the binary package is in the unlocked state.

3. The inflation plugging device according to claim 1, wherein the positioning device comprises a fourth driving member and a limiting baffle, the fourth driving member can drive the limiting baffle to move, and a second plug hole is formed in the limiting baffle and can accommodate a plug.

4. The inflation plugging apparatus of claim 1, further comprising a cutting device, wherein the cutting device comprises a blade holder and a blade, and the blade is fixed to the blade holder.

5. The inflation plugging device according to claim 3, wherein the fourth driving member is fixed to the third bracket, the inflation plugging device further comprises a cutting device, the cutting device comprises a cutter holder and a blade, the blade is fixed to the cutter holder, the cutter holder is connected to the third bracket, the blade is located at an upper side position of the limit baffle, and the fourth driving member can drive the limit baffle to move towards the blade.

6. The inflation and plugging device according to claim 1, wherein the output end of the first driving member is connected to a fixing element, a first plug hole for plugging a plug is formed in the fixing element, the first plug hole penetrates up and down, a mounting groove for mounting a binary package is formed in the fixing element, the first plug hole is communicated with the mounting groove, a protrusion is formed in the mounting groove, the first plug hole penetrates through the protrusion, and a first sealing ring is arranged on the protrusion.

7. The inflation plugging device according to claim 6, wherein the first plug hole has a large upper opening and a small lower opening.

8. The inflation plugging device according to claim 1, wherein the extrusion device comprises a two-stage driving component, the two-stage driving component is divided into a second driving component and a third driving component, the output end of the second driving component is connected with the third driving component, the output end of the third driving component is connected with a firing pin, and the second driving component and the third driving component can plug the plug into the through-dose hole through the firing pin.

9. The apparatus of claim 8, wherein the output of the second drive member is coupled to a retainer, the retainer being removably coupled to the firing pin.

10. The apparatus according to claim 8, wherein the first, second and third driving members are cylinders.

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